Yes there most definitely is, however this needs to be done with the guidance of your primary care physician with regular re-checks of your blood pressure - these need not be full visit, but in-office blood pressure checks with their properly calibrated equipment.
That way you'll notice any rise in your blood pressure which could be dangerous.
I would probably start with the losartan being reduced in dose.
And see how you tolerate that. While stil on it but at a lower dose, maintaining your beta blocker at the same dose
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